degradação : 133 phrases in 22 subjects |
Agriculture | 1 |
Chemistry | 5 |
Coal | 1 |
Communications | 12 |
Computers | 2 |
Construction | 1 |
Earth sciences | 12 |
Economy | 4 |
Education | 1 |
Electronics | 13 |
Environment | 40 |
General | 7 |
Health care | 2 |
Industry | 2 |
Life sciences | 9 |
Materials science | 2 |
Medical | 9 |
Natural sciences | 3 |
Nuclear physics | 1 |
Radio | 2 |
Technology | 2 |
Transport | 2 |